Flask.



PATENTED APR. 26, 1904.

HSTRUBBN.

FLASK. APPLICATION FILED MAY 1,1902. nmnwm we. 5. 1903.

N0 MODEL.

Zia enter I '9, I- I Wtta we;

m: noams Pcrgns cu. moron-ma. WASHINETUN o c UNITED STATES Patented April as, 1904.

PATENT OFFICE.

FLASK.

SPECIFICATION formingpart of Letters Patent No. 758,339, dated April 26, 1904.

Application filed May 1, 1902. Renewed August 5, 1903. Serial No. 168,366. (No model.)

To a whom it rnwy concern:

Be it known that I, HENRY STRUBEN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Flasks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same;

My invention relates to a novel construction in a coflee-flaskthe object being to provide a flask which can be readily and thoroughly cleaned; and it consists in the features of construction and combinations of parts hereinafter fully described and claimed.

In the accompanying drawings, illustrating my invention, Figure 1 is a side elevation of a coffee-flask constructed in accordancewith my invention. Fig. 2 is fragmentary detail section of same on the line 22 of Fig. 1. Fig. 3 is a fragmentary detail section of same on p the line 3 3 of Fig. 2.

Mechanics coffee-flasks now in general use are made of tin and have no means of access for purposes of cleaning except through the small neck. Hence it is impossible to thor oughly clean the same, and as a result the. coagulation of the coffee in the corners renders the fresh coflee unpalatable.

To render the flask readily accessible for purposes of cleansing same, I provide the flask with a large elliptical neckAat one end, which is sealed by means of a close-fitting flanged cap B, provided adjacent said flange with an elliptical shoulder C for the reception of a washer D, of cork or other suitable material, by means of which a liquid-proof joint is found between the cap and the neck. The said capB is secured in place on the neck by means of a crank-shaft E passing vertically through the center of said cap and provided at its lower end with a cross-arm F, of

heavy spring metal, which is of greater length than the width of the neck and is adapted to engage the shoulder G at the upper end of the bottle below the end, thereby securely holding said cap in place. Said capBis also provided adjacent one end with a small screw-threaded neck .H, closed by a threaded cap I, from which thecontents of the flask can be poured or drunk in the usual manner. By thus affording a large opening at the top of the flask the same canobviously be thoroughly cleaned without difliculty.

I claim as my invention 1. A coffee-flask having an elliptical neck of smaller dimensions than the body, an elliptical cap provided with an elliptical flange closely fitting over. said neck, an elliptical shoulder in said cap adjacent said flange adapted to receive a washer, a crank-shaft passing centrally through sa1d cap, a spring cross-arm at the lower end of said crank-shaft of greater length than the width of said neck and adapted to engage the shoulder formed in said flask below said neck to hold said cap firmly in place on said neck, substantially as described.

2. A coffee-flask having an elliptical neck smaller thanthe body, an elliptical cap having a flange adapted to closely fit over said neck, suitable packing within said cap adapted to fit against the top of said neck, ashaft passing centrally through said cap, and a crossarm rigidly attached to the lower end of said shaft of greater length than the width of the opening in said neck, said cross-arm being adapted to engage the shoulder beneath said neck thereby serving to clamp said cap in position.

In testimony whereof I afiix my signature in presence of two witnesses.

' HENRY STRUBEN. Witnesses:

RUDOLPH WM. Lo'rz, WM. B. SNowHooK. 

